Build a fire in a kettle grill or preheat a gas grill to medium-high. Grind nuts in a food processor or blender and add to a bowl. Add all remaining ingredients. Make two patties with your hands. Place on a pizza warming pan and grill about 4 to 5 minutes per side. Warm the buns on the grill for about 1 minute before serving and add your favorite accompaniments- tomato, mustard, lettuce, red onions, ketchup, the works.